Invention Grant
- Patent Title: Method for controlling a single input dual output DC-DC converter, corresponding converter and computer program product
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Application No.: US17885901Application Date: 2022-08-11
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Publication No.: US12081128B2Publication Date: 2024-09-03
- Inventor: Alessandro Gasparini , Mauro Leoncini , Claudio Luise , Alberto Cattani , Massimo Ghioni , Salvatore Levantino
- Applicant: STMicroelectronics S.r.l.
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: STMicroelectronics S.r.l.
- Priority: IT 2021000022130 2021.08.20
- Main IPC: H02J1/10
- IPC: H02J1/10 ; H02M3/158 ; H05B45/3725

Abstract:
A Single Input Dual Output converter includes a first switch coupling an input to a first inductor terminal, a second switch coupling a second inductor terminal to ground, a third switch coupling the second inductor terminal to a positive output, and a fourth switch coupling the first inductor terminal to a negative output. During time-shared control, the negative and positive outputs are independently served by conversion cycles. Each conversion cycle includes: a positive phase with a positive charge phase (closing only the first and second switches), followed by an additional phase (closing only the first and third switches for a given time duration), and followed by a positive discharge phase (closing only the third and fourth switches). Each conversion cycle further includes a negative phase with a negative charge phase (closing only the first and second switches) followed by a negative discharge phase (closing only the second and fourth switches).
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